Fire-door lock.



H. G. VOIGH'I.

FIRE DOOR LOCK.

APPLICATION HLBD JAN.31, 1913.,

v Patented Aug. 12, 1913.

2 SHEETS-SHEET 1.

H..G. VOIGHT.

FIRE DOOR LOCK. APPLICATION FILED unal, 191s. A

1,070,365.. -Patentea Aug. 12, 1913.

2 SHEETS-SHEET 2.

FFC.,

HENRY Gr. VOIGHT, OF BRITAIN', CONNECTICUT.

FIRE-DOOR LOCK.

Specification of Letters Patent.

latzented Aug; 12,1913

.laplieation le January 3l, 1913. Serial No. 745,386.

To r//Z "te/wm ffm/1 1] concern.'

lie it known that l'. Hexer (t. Voioirr, a citizen ot' the United States, residing at New Britain, Connecticut, have invented certain new and useful Improvements in Fire-Door Locks, of which the following' is a full, clear, and exact. description. A

'l`his'invent1on relates to so-ealled fire door locks and more mrtieularly to the general type ot' tire door lochV disclosed in my prior Patent Xo. 1,0JCT,UOU of Deeember 17th. D12, in which a plurality of spaced gravity locking' bolts are employed, these bolts beine' retractable through a common operatingr means and being' blot-lied against surreptitious retraction iiulepeiulently ot.' said operation' means. mechanism bein; y provided in addition t'or automatically locking' these bolts retracted upon the opening` ol the door and l'or automatirally releasing' said boltsI upon the elosing ot' the door.

-'l`he present invention embodies a tire door-I` loek of this l'eneral character providine' improved holt operating and blocking means, a detailed description of which will he l'ound in the following` lspecification taken ,in lconnection with the aeeompanving drawings 'forming part thereof. and illustrating' a preferable embodiment of my iinproved forni ot lock. v

ln these drawings. Figure l is a view in elevation ot the loelv' trame and the assembled lot-lt parts. the tace or wall of the hollow metal door and a plate olI the lock case being' removed to disclose the interior arrangement. Fig. 2 is a vertical section through he door with the loch 'trame and loclt in position therein. Vig. Z3 is a 'traffmentar),Y vertical section` on an enlarged scale, taken through the lower end ot' the door. lfiy. lis a similar section through the upper end ot' the. door. Fig'. 5 isa View' ol' a detail. Fie. t3 is a `fragmentary `View in elevation ol` the upper end ot the lock t'rame and its parts, and illustrates a moditied lorm of lock.

Af; a prel'aee to .a ldescription of the elements ot' the lrziwings, l may state that the loelt ot' the present invention is ot' the type intended tot' apjfilication as a unitary strueture to hollow metal doors, the frame beiner insertible within the door `from its edge, the outer tace of the traine terminer the edge plate of the door,k

Referring now to the structure shown in llartiord county, State ofv tudinallyY thereof, studs 3 are provided, these studs being' intended for spot 'welding to the inner taee ot' the hollow door. The bar`l of the angle iron has an otl'set portion 4 ately secured, this casingr eomjn'isiner plates 5 spaced apart and by studs t5. The sleeve t' handle (not shown) leek case, the spindle ,(not shown) trom said of an operating' t). Seated over this roll back t) and its hub and supported thereby is a volte lt) having' one end rigidlj secured to an operatingbar tl extending; longitudinallv of the lock trame. 'this` operatingr bar is mounted to have avcomluned longitudinal and transverse motion. A\djacent its'lower end a braeliet l2 projects ytrom the bar 2 of the angle iron and a link nected to angle iron. its bar 2 has` secured thereto and |'nojecting therefrom a. bracket plate llt, this plate beine' j'n'ovided with an elongated aperture l5 therein through which the opel'- atingbar ll extends and b v u'ieans of which the combined longitudinal and transverse movement ot the bar is perniitted.

At a pluralit)r ot points longitudinally ot the angle iron'. the bar l ot the angle iron is provided with pivot studs lt on each of which a locking `bolt 1T is journaled by means ot' a pin 15H. llach bolt is formed with a cam slot 1S) therein adjacent its rear end, cooperatingA with which are stud." 2() carried by and projecting' 'from the operating' bai'. one stud beine' pr videdlor each bolt. rl`he studsI are seated within `the Cain slots and lie at; the rear ends of said slots when the bolts are projected. the angle iron mayY be provided with a suit# To the upper end of the operatin` bar l1 is pivot'ally set-tired a locking head 22 haiting a locking recess 23 therein. A transot' the door and at suitable intervals, longi-l (Fie. l) to which a loch easing;` is appropri- 4 secured in such relation' handle seating in the hub 8 ofthe roll baely able linish plate 2l, both this plate and the bar 2 being' suitably apertured to permit theprojection and retraction ot the looking' 1 proper is is carried within this 125 is pivotally conthis bracket and to the lower end' of the bar. Adjacent the upper end of the rl"he bar 2 of in'Which cooperates with the offset locking flange 3G of the pivoted locking dog 37, as heretofore described in connection with the other forni of locking head and dog. ln

this form of my device, as in the one first described, there is, therefore, movement of the operating bar in two different directions, one direction of movement being through the operating handle and being adapted to retract the bolts and the other direction ot movement ot' said bar blocking its operation to retract said bolts, this last action taking place upon attempted retraction of the bolts independently of the operating bar (as through a knife inserted between the door and jamb as heretofore suggested).

iVhile I have beein described specific structural embodiments of my invention, it will be understood that the same may be modified in detail and relative arrangement of parts within the spirit of the invention and the. scope of the appended claims.

i/Vliat I claim, theretore, and desire to secure by Letters Patent is:

l. In a lock of the character described, in combination, a. plurality ot spaced latch bolts, a common operating member therefor movable in two different directions, manually operable means for moving said member in one direction to retract saidV bolts,

means wherebyattempted retraction ot` said -bolts independently of said operating men ber moves said member in another direction, and means blocking the operation of said member to retract said bolts upon such movement.

2. in a lock of the character described, in combination, a plurality otl spaced latch bolts,i'iieaiis normally tending to project said bolts, a common operating member therefor movable in tivo diterentdirections, manually operable means for moving. said meml3er in one direction to retract said bolts, means whereby attempted retraction of said bolts independently oit said operating niembei' moves said member in another direction, and means blocking the operation of said member to retract said bolts upon `such movement.

lin a lock of tbe character described, in combination, a plurality ot spaced latch bolts, a commony operating member therefor movable in two different directions, manually operable means for moving said meinbei' in one direction to retract said bolts, means whereby attempted retraction of said bolts by moving the same inwardly from the door jamb independently of said operating member moves said member in another diret-tion, and means blocking the operation of said member to retract said bolts iipoii such movement. y

l. lu a lock of the character described, in combination, a plurality oi" spaced iatcb boits,mcans normally tending to project said bolts, a common operating member therefor movable in tivo dilt'erent directions, inaniially operable means for moving said member in cnc direction to retract said bolts,v

means whereby attempted retraction of said bolts independently of .said operating inember moves said member in another direction,

adapted to block bolt-retracting movement,y

of said member, manually operable means for moving said operating member ina di'- rection to retract said bolts, and means whereby attempted retraction of said bolts independently ot' said operating member moves said member in a direction to engage said abutment whereby retraction of said bolts is blocked.

(i. In a lock of the character described, in combination, a plurality oi spaced latch bolts, means normally tending to project said bolts, a common operating member therefor movable in two dili'erent directions, an abutment positioned in the path ot' said member in one direction oi movement thereot' and adapted to block bolt-retracting bcr in a direction to retract. saidl bolts,`

means aiitoi'natiiailly operable upon the opening ot the door to retain said latch bolts in retracted position, and automatically releasing said bolts upon the closing of. the door ivliereli' they may be projected, and means whereby attempted retraction ot said bolts inde]icndently ot said operating nieni ber moves said member iii a direction to engage said blocking abutment.

T. In a loi-lt of the character described, in plurality of spaced pivoted latch bolts having cam sli'itstherein, a coninion operating bar therefor movable in two diiierent directions, said bar being provided with a plurality of actuating studs engaging in said cam slots and being normally positioned by gravity to project said bolts, an abutment positioned in the path ot said operating bar in one direction of movement 'thereof and adapted to block bolt-retracting movement ot' said bar, ii'ianually operable means for moving said bar in a direction out oi' line with said abutment to retract said bolts, and means whereby attempted retraction oi said bolts independently ot said 0per1-ating bar moves Sant bar in a direction to engage said abutment whereby retraction of said bolts is bloehed. v

8. In a loch ot' the character described, in o milnnation, a plurality et' spaced pivoted latch bolts having'cam slots therein, a common operating bar therefor movable in tivo dill'erent directions, said bar being` provided with a plurality of actuating studs engaging in said cam slots and beingl normally positioned b v gravity to project Said bolts, an abutment positioned in the path of said operating bar in one direction ot movement; thereof and adapted to block bolt-retracting movement ot said bar. manuali)Y operable means for movingT said bar in ay direction out ot line Vwith said abutment to retraet said bolts2 a locking head carried by said bar operatively positioned by bolt retraeting movementtllereoi, a movable bitching;1 mem ber automatically positioned by the opening ot the door to engage said locking` head and retain said bolts in retracted position, and autoimitically moved by the closing" ot the door to disengage said locking` head whereby said bolts may be projected, and means whereby attempted retraction oit Said bolts independently ot said operating bar moves said bar in a direction to engage said abutment whereby retraction ot said bolts is blocked.

t). A unit lock of the character described comprisino', in combination, a trame, a plurality of spaced bolts carried thereby, a common oiiierating member tor said bolts mounted in said trame tor movement in two different directions and normally tending' to move said bolts into projected position7 man uallv operable means carrieil by said trame for moving said men'iber in one direction to retract said bolts;o means whereby at.- tempted retraction ot said bolts independently ot said operating;` member moves said member in another direction, and meansI blocking the operatii'm ot said member to retract said bolts upon such movement in another direction.

lit A unit locl ot the character described.

comprising', in rannbimiton, a lock trame, a i plurality7 ot spaced latch bolts carried 'there` lo', a common opel-alum' mcml'ier l'or said bolts in operative Connection therewith and mounted inbsaid frame for movement in tivo ditteren't directions, said operating; member normally tending to move said bolts to projected position, an abutment carried by said; trame and positioned in Athe path ot' said member in one direction of movement therew of, said abutment being adapted te block bolt-retracting movement et said memberi manually operable means tor moving said operating` member in a direction out. et the path ot said abutn'ient to thereby retract said bolts, and means whereby attempted retrmf tion ot said bolts iinlepemlently ot said opai; eratingv member moves said member in a di rection to engage said almtment wherebyY ie traction et said ,bolts is bloelred.

tl. A unit loci; et the character descrittori. romprisine', in eombinatiom a loelr trame.l a plurality et' spaced latch bolts carried thereby` a common operatingV member tor said bolts in operative connection therewith and mounted in said traine tor movement in tivo ditlirent directions, said operating` menber 7f3 norn'ially tending to move said boltc to pr iected position, an abutment carried 't'rame'and ifiositioned in the path ot member in one direction oit nnivement the of, said abutment being adapted te b bolt-retracting movement el' said nieml'ici-, manually operable means `tor moving operating' member in :i direction out;

t ie path of said abutment to thereby' retractbolts, a locliii'ig head carried by Said ,meint operatively positioneifl by bolt 'retraining' '.novenzent thereof, a movable lntchino me ber automatically positioned by the o' ot the door to engage said .loeliing hea: retain said bolts in retracted poeitio De automatically moved by the elogia door to lisengage said loeliino` said bolts may b'e `projeeti i, and whereby attempted retraction ot' said independently ot said' tmeratir-'r movesA said member in ay directi lsaid abutunnt wlierebv retraction o;

boltsl is blocli'ed, 

